Improvement in cork-cutting machines



UNITED STATES PATENT (NEIGE.`

lMPROVEMENT IN CORK-CUTTING MACHINES.

- Specilicatiou forming part of Letters Patent No, 35,867, datcd July15, 1862.

To all whom it may concern,.-

Beit known thatl, HAEETs BOARDMAN, of Lancaster, in the county ofLancaster and State of Pennsylvania, have invented a new and usefulImprovementin CoileCutting Machines; and I do hereby declare that thefollowing is a full, clear, and exact descrip/tion ofthe constructionand operation of the same, reference being had to the annexed drawings,making a part ot' this specilication,in which*- Figure l is aperspective view of the cylindrical cutterwith its scalloped or lancepoint edges; Fig. 2, a portion of the same laid open; Fig. 3, a'view inperspective of the whole machine.

I employ a cylindrical cutter, Fig. l, constructed by forming thecutting-edge so as to constitute a series of lance-blade points insteadof a smooth continuous cylindrical edge for cutting` cork, in ordertoprevent the heating and loss of temper in the thin steel cylindricalcutter, thereby also doing away with the necessity of employing a rimmeror crown` saw. Such a series of points or blades are also better'adapted for overcoming the elasticity and spriuginess of the cork, andprevent its binding effect upon the tool.

To operate this cutter I employ an upright stand, F, having a table, T,on which the slab ofV cork is laid. The toolestock, with its longtraverse pulley I? and bearings b, is made tubular, into which the rodR, adjusted by asetscrew, S, on the top of the standard F, enters, thisrod being fixed or stationary when adjusted, and expelling` the cut corkas the tool is raised up for another cut. The tool hold ing thecutter-pulley and bearings is aftixed by brackets B B to a plate, D,sliding up and down in side grooves on the upright standard F, and isdrawn up by means of a treadle or lever, L, having a chain or ropeoverapulley, Q, attached thereto. There is also an ad j ustable stop, E,which arrests the sliding plate, gaged so that the cutter simplypenetrates through the cork or slab. The tool is revolved by means of astrap traversing over the long pulley P in the up-and-down motions ofthe tool, the tool descending by its own gravity or the action ofthelever, which may he em-` ployed in either direction by means of orwithout a pending weight.

Iam aware that movable rods are used in a horizontal position for asimilar object. I am also aware that cutters or tools are employed in avertical position; nor do I claim such. Neither do I claim a cylindricalcutter, as such with a smooth cutting-edge has been used, as well assplit cylindrical cutters, for cutting corks tapering. I therefore donot claim a cylindrical cutter operated vertically, as those referredto.

That I claim as my invention, and desire to secure by Letters Patent,is-

The combined arrangement of the cutter, as described, sliding tool-stockoperated by a treadle, adjustable stop E, long traverse pulley P, andadjustable stationary rod R, substantially as and for the purposesherein specitied.

HARRIS BOARDMAN.

Witnesses:

JACOB STAUEEER, JAY CADWELL.

